HP 5120 EI Series Lan Switching Configuration Manual page 5

Layer 2 static aggregation configuration example ···························································································· 50
Layer 2 dynamic aggregation configuration example ······················································································ 52
Configuring port isolation ·········································································································································· 55
Assigning a port to the isolation group ······················································································································· 55
Displaying and maintaining the isolation group ········································································································ 55
Port isolation configuration example···························································································································· 56
Configuring spanning tree protocols ························································································································ 57
STP ··················································································································································································· 57
STP protocol packets ············································································································································· 57
Basic concepts in STP ············································································································································ 58
Calculation process of the STP algorithm ··········································································································· 59
RSTP ················································································································································································· 64
PVST ················································································································································································· 64
MSTP ················································································································································································ 64
STP, RSTP, and PVST limitations ·························································································································· 64
MSTP features ························································································································································ 64
MSTP basic concepts ············································································································································ 65
How MSTP works ·················································································································································· 69
Implementation of MSTP on devices ···················································································································· 69
Protocols and standards ················································································································································ 69
Spanning tree configuration task list ···························································································································· 70
Configuration restrictions and guidelines ··········································································································· 70
STP configuration task list ····································································································································· 70
RSTP configuration task list ··································································································································· 71
PVST configuration task list··································································································································· 72
MSTP configuration task list ································································································································· 73
Setting the spanning tree mode ···································································································································· 74
Configuring an MST region ·········································································································································· 75
Configuration restrictions and guidelines ··········································································································· 75
Configuration procedure ······································································································································ 75
Configuring the root bridge or a secondary root bridge ·························································································· 76
Configuration restrictions and guidelines ··········································································································· 76
Configuring the current device as the root bridge of a specific spanning tree ·············································· 76
Configuring the current device as a secondary root bridge of a specific spanning tree ······························ 77
Configuring the device priority ····································································································································· 77
Configuring the maximum hops of an MST region ···································································································· 77
Configuring the network diameter of a switched network ························································································· 78
Configuring spanning tree timers ································································································································· 78
Configuration restrictions and guidelines ··········································································································· 79
Configuration procedure ······································································································································ 79
Configuring the timeout factor ······································································································································ 80
Configuring the maximum port rate ····························································································································· 80
Configuring edge ports ················································································································································· 81
Configuration restrictions and guidelines ··········································································································· 81
Configuration procedure ······································································································································ 81
Configuring path costs of ports ···································································································································· 81
Specifying a standard for the device to use when it calculates the default path cost ··································· 82
Configuring path costs of ports ···························································································································· 83
Configuration example ········································································································································· 84
Configuring the port priority ········································································································································· 84
Configuring the port link type ······································································································································· 85
Configuration restrictions and guidelines ··········································································································· 85
Configuration procedure ······································································································································ 85
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